But image based lighting using a high-dynamic-range imaging (HDRI) map will affect the whole of the 3D scene because, effectively, this lighting surrounds the whole scene.įor this reason, HDR Light Studio has been extended to allow lights to be promoted away from the distant HDRI map surrounding your scene, and into 3D space as area lights, mapped with HDR lighting content that is interactively controlled by HDR Light Studio. Sometimes when lighting a product shot, you need light/reflections to affect only a certain part of the 3D model.
These have been expanded again for this release and you’ll find a vast variety of lights there to pick and choose from, from standard spots, light umbrellas, softboxes and all manner of real world photography equipment. While it’s perfectly possible to create your own lights from scratch, choosing from a wide range of different templates and starter entities, the system is supplied with a huge range of highly accurate representations of real world lights. These tools are not just useful for creating light but for adding and positioning additional lights or other content to HDR images as well. When you output the final environment, these are then mapped into that final image. What Lightmap has now done is introduce the ability to adjust the lights using 3D like X, Y and Z control (as you can see in figure 2). With spherical environment maps, you’re pretty much stuck with being able to position light entities on the surface of the sphere.
Interestingly for this release, Lightmap is also introducing more control over how lights are positioned. Of course, if you’re running with the system connected to a separate renderer, then you’ll also be able to transfer any edits and see where you’re at. For this you can either position it in the HDR preview (the lower window in figure 1) or by placing a highlight on your 3D model (and having the system work out its position in your HDR image).įor some time now, the system has allowed you to load in your own models (rather than using the default teapot), this means you can place highlights more accurately and gain more context for your edits. This is done by choosing the type of light you want to add in, then positioning it. Essentially, you load your environment and start to adjust it, adding in light sources where needed to provide the lighting and refl ections required on your model. In both these workflows, the use of the system remains the same.
The first is building a lighting environment from scratch and the second is adapting an existing environment to better suit your purposes. There are two essential workflows for HDR Light Studio. 2 End result rendering using the HDR image map from figure 1 (image courtesy of ) The basics
0 kommentar(er)
